How does antivirus software actually work? Top antivirus software developers and researchers reveal their secrets. In this first segment, we cover a brief history of computer viruses and detection methods, followed by insights into virus signature scanning techniques.

Hosting multiple operating systems is a great way to try out a new OS or to do something truly dangerous and foolish in in a protected OS without destabilizing the host machine. VMWare 3.0 makes it easier than ever.

In this first segment of a two-part story, we explore the history of Virtual Machines, how they operate in “real” machines, how hardware virtualization works, and the techniques used by VMware’s virtualization technology.

Are you a Professional? A Developer? An Architect? You’ll have to figure that out in order to buy the right version of Visual Studio .NET. Whichever version you choose, you’ll find that VS.NET is shaping up to be a killer development environment for client, server, or Web apps. We like the way it accommodates many languages and styles of working, yet can lock down key components for team development.

Does software development have a purpose without Web services anymore? You wouldn’t think so if you’d attended SD Web Services World in Boston last week. It’s the latest incarnation of the old Software Development conference, and it shows the extent to which the Web has come to dominate our lives. But our intrepid reporter was still able to find lots of classic software development gold there, too.

WPA: threat or menace? Invasion of privacy or violation of personal freedoms? Maybe none of the above. We put WPA through its paces in both RC1 and RC2, and found some intriguing differences. If the RC2 version becomes production software, WPA may not be as onerous as you’ve heard–we were pleasantly surprised that it was more permissive than RC1. Then again, it may be a real irritant to hardware enthusiasts. This article describes the technology and tests various upgrade scenarios including disk and motherboard swaps.

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